Digenea 



Incidence of infection 

 Intensity of infection 

 Cestoda 



Host parasite interactions 

 Nematoda 



Incidence of infection 

 Intensity of infection 

 Distribution 



Seasonal changes 

 Larva 



Seasonal changes 

 Seasonal changes 

 Developing egg 

 Larva 

 Populations 

 Population density 



Availability and use of food 



Plankton 

 Reproductive season 

 Seasonal abundance 



Larva 



Population changes 

 Orientation with light source 



Fishing methods 

 Experimental ar 

 Hydrostatics 



Seasonal changes 

 Hydrodynamics 

 Feeding 



alysis 



rhythn 



Change \ 

 Larva 



Larva 

 Migrations 

 Optomotor response 

 Myxosporidiosis 

 Natural mortality 

 Developing egg 

 Hydrostatics 

 Oil pollutants 

 Effect on fish 

 Developing egg 

 Larva 

 Engraulis guincensis 

 Epibranchial organ 

 Anatomy 

 Histology 

 Function 



Descriptive evolution 

 Engraulis japonicus 

 Coloration 

 Peritoneum 



Axial gradients 

 Visceral skeleton 

 Urohyal 

 Anatomy 



Identification 

 Gut 



Change with age 

 Anatomy 

 Gill rakers 



Change with age 

 Anatomy 

 Function 

 Ovarian cycles 

 Fecundity 

 Digenea 



Distribution of infection 

 Cestoda 



Distribution of infection 

 Incidence of infection 



Parasite life history 

 Population structure 



Reproductive season 

 Allometry 

 Seasonal abundance 

 Gut contents 



Change with age 

 Habitat preference 



Temperature 

 Schooling 



Avoidance responses 

 Mass mortalities 



Seasonal abundance 

 Temperature 

 Engraulis mordax 

 Mineral content 



Coloration 



807765 

 806282 

 807198 



805664 



807649 



807649 

 807765 

 807078 

 807272 



807979 

 807979 



807670 



807670 



807078 

 806339 

 805466 



807770 

 807770 



805463 

 805463 

 805463 



806761 

 806761 

 804315 

 804315 



805473 



805473 



805423 

 806581 

 805423 



804963 



809100 



806761 

 809100 

 806323 



804801 



807349 



Rate of growth 

 Sex ratio 



Stratigraphic distribution 

 Pliocene 

 Pleistocene 

 Littoral zone 

 Vertical distribution 

 Mammalia 

 As predator 



Population changes 

 Population changes 



Developing egg 

 Larva 



Larva 

 Population density 



Larva 



Population 

 Interspecific 



Computer 



Engraulidae 



(continued) 



hanges 



)mpetition 



lalysis 



class distribu 



Availability and use of food 



Maintenance energy requirements 

 Straining for food 



Reproductive season 

 Infraspecific variation 



Seasonal abundance 



Preying on small prey 



Experimental analysis 

 Straining for food 



Experimental analysis 



Migrations 



Reproduction 



Bait fish 



Fishery dynamics 



Interspecific competition 



Maximum yield 

 Computer analysis 

 Population dynamics 

 Fisheries improvement 

 Regulation of catch 

 Oil dispersant 



Lethal environmental limits 

 Egg 

 Larva 

 Archeological data 

 Marking and tagging 

 Effect on fish 

 Engraulis r in gens 

 Ovarian cycles 



Fecundity 

 Testicular cycles 



Sex ratio 

 Infraspecific variation 



Lipid and fatty acid content 

 Aves 



As predator 

 Distribution 



Developing egg 

 Larva 



Population changes 

 Availability and use of food 



Population changes 

 Seasonal abundance 



Sonar observation 



Gut contents 



Geographic variation 



Seasonal changes 

 Seasonal changes 

 Change with age 

 Fishery statistics 

 Natural mortality 

 Fishing mortality 



Productivity 



Regulation of catch 



Maximum yield 

 Overfishing 



Mathematical population moc 

 Etrumeus micropus 

 Seasonal abundance 



808314 

 808314 



807372 

 805517 



807372 

 807372 



808313 

 807892 



807528 



807854 

 804727 



804676 

 804676 

 808318 



805701 

 808166 

 805701 

 805701 

 808166 

 805701 



808381 

 808384 

 808387 



804334 

 808755 



805574 

 805206 



329 



